Roll call voting records for the United States House of
Representatives and Senate through the 100th Congress are presented in
this data collection. Each data file in the collection contains
information for one chamber of a single Congress. The units of
analysis are the individual members of the House of Representatives
and Senate. Each record contains a member's voting action on every
roll call vote taken during that Congress, along with variables that
identify the member (e.g., name, party, state, and uniform ICPSR
member number). In addition, the codebook provides descriptive
information for each roll call, including the date of the vote,
outcome in terms of yeas and nays, name of initiator, the relevant
bill or resolution number, and a synopsis of the issue.

Roll call voting records for the United States House of
Representatives and Senate through the 100th Congress are presented in
this data collection. Each data file in the collection contains
information for one chamber of a single Congress. The units of
analysis are the individual members of the House of Representatives
and Senate. Each record contains a member's voting action on every
roll call vote taken during that Congress, along with variables that
identify the member (e.g., name, party, state, and uniform ICPSR
member number). In addition, the codebook provides descriptive
information for each roll call, including the date of the vote,
outcome in terms of yeas and nays, name of initiator, the relevant
bill or resolution number, and a synopsis of the issue.

This collection is derived from UNITED STATES
CONGRESSIONAL ROLL CALL VOTING RECORDS, 1789-1990 (ICPSR 0004), and
differs from that collection in several ways. Codebooks have been
standardized in format across all Congresses, and a number of
discrepancies in members' identifying information (member
identification number, party, etc.) have been corrected.

Methodology

Data Source:

Inter-university Consortium for Political and Social Research.
UNITED STATES CONGRESSIONAL ROLL CALL VOTING RECORDS,
1789-1990 (ICPSR 0004)

Version(s)

Original ICPSR Release: 1992-10-31

Version History:

2006-01-12 All files were removed from dataset 201 and flagged as study-level files, so that they will accompany all downloads.

2000-07-27 Replacement data files for the House, 1st through
99th Congresses (Parts 1-197, odd) have been provided by the principal
investigators. For details on the specific corrections made to this
version of the data, users should consult the User Guide. In addition,
data for the House's 100th Congress (Part 199) and the entirety of the
Senate votes from the 1st-100th Congresses (Parts 2-200, even) have
been added, making the collection complete through 1990. Also, a User
Guide for All Parts (Part 201) has been added. While the previous
version of this collection was available only on diskette, the entire
collection is now available online for downloading from the ICPSR
Website.